Arid
DOI10.1046/j.1365-2664.2003.00848.x
Microsite availability and establishment of native species on degraded and reclaimed sites
Elmarsdottir, A; Aradottir, AL; Trlica, MJ
通讯作者Elmarsdottir, A
来源期刊JOURNAL OF APPLIED ECOLOGY
ISSN0021-8901
出版年2003
卷号40期号:5页码:815-823
英文摘要

1. Restoration of native plant communities on previously disturbed land requires the identification and modification of environmental factors that impede or restrict ecosystem succession or development. One of the key factors in successful reclamation is to ensure colonization and persistence of native species within an area. Therefore, the identification of microsite types that favour colonization by native species should improve our ability to successfully reclaim degraded areas.


2. The objectives of this study were to (i) identify and describe microsite types that were conducive to the establishment of five native plant species (Euphrasia frigida, Galium normanii, Thymus praecox, Cerastium spp. and Rumex acetosa) on degraded and reclaimed sites in Iceland; and (ii) to determine the effects of reclamation activities that included the application of manure and inorganic fertilizer on the distribution of microsite types and seedling establishment. Reclamation sites of different ages were examined on an eroded area where the target community was a grass or shrub heath.


3. The spatial distribution of plant establishment was not random but varied among microsite types and study sites. More seedlings than expected were found in microsite types characterized by small rocks and biological soil crusts. These may have entrapped seed and provided more soil stability and moisture than other microsite types. The cover of these microsite types varied among the study sites but the pattern of seedling establishment among the five native forbs was similar.


4. Synthesis and applications. Practical reclamation methods are improved by identifying those factors that promote successful seedling establishment by native species. Application of fertilizer without additional seeding proved to be a simple reclamation approach that increased the availability of one favourable microsite type, enhanced the establishment of native species and subsequently allowed vegetation cover to expand. Seed of native plants may be difficult to obtain commercially, but this approach can be used on degraded land where propagules are available but recovery is slowed by soil instability or nutrient limitations.


英文关键词colonization erosion fertilization Iceland microsite type reclamation safe sites seedling establishment
类型Article
语种英语
国家Iceland ; USA
收录类别SCI-E
WOS记录号WOS:000185552400005
WOS关键词POLAR DESERT ECOSYSTEM ; MOUNT ST-HELENS ; SEEDLING ESTABLISHMENT ; CRYPTOGAMIC CRUSTS ; PRIMARY SUCCESSION ; DEVON-ISLAND ; SAFE-SITE ; DISTRIBUTIONS ; RESTORATION ; RECRUITMENT
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构Colorado State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/144931
作者单位(1)Icelandic Soil Conservat Serv, IC-815 Hella, Iceland;(2)Colorado State Univ, Rangeland Ecosyst Sci Dept, Ft Collins, CO 80523 USA
推荐引用方式
GB/T 7714
Elmarsdottir, A,Aradottir, AL,Trlica, MJ. Microsite availability and establishment of native species on degraded and reclaimed sites[J]. Colorado State University,2003,40(5):815-823.
APA Elmarsdottir, A,Aradottir, AL,&Trlica, MJ.(2003).Microsite availability and establishment of native species on degraded and reclaimed sites.JOURNAL OF APPLIED ECOLOGY,40(5),815-823.
MLA Elmarsdottir, A,et al."Microsite availability and establishment of native species on degraded and reclaimed sites".JOURNAL OF APPLIED ECOLOGY 40.5(2003):815-823.
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